Number of people (in lakhs) in five cities A–E and ratio of three age groups I:II:III. (I: 0–<21; II: 21–<41; III: 41+.)
| City | People (lakh) | I:II:III |
|---|---|---|
| A | 14.4 | 1:3:2 |
| B | 16 | 2:3:3 |
| C | 19.2 | 1:1:2 |
| D | 12.8 | 3:1:4 |
| E | 12 | 1:3:1 |
What is the difference between the total number of people of age group II in cities A and B together and the total number of people of age group III in cities C and E together?
A2 lakhs
B1.2 lakhs ✓ Correct
C2.4 lakhs
D0.8 lakhs
Correct answer: (B) 1.2 lakhs
Explanation
The difference is 1.2 lakhs, so that is the answer.
Group II in A is 7.2 lakh and in B is 6.0 lakh, totalling 13.2 lakh.
Group III in C is 9.6 lakh and in E is 2.4 lakh, totalling 12.0 lakh.
The difference is 13.2 minus 12.0.
That equals 1.2 lakh.
Hence 1.2 lakhs is correct.
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